Aeilkema.. are you rendering with Tone Mapping on? Try switching it off. My first attempt was a lot like yours: Nice enough but at the same time strangely flat and kinda washed out. Almost like a Bryce render.
Once I disabled tone mapping it looked a lot better. The colours were more vivid and there was a better depth in it :)

I really like your pic btw. And it's funny because I ALMOST made one very similar in idea to this :)

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.